Download or read book Equilibrium Electron Distributions in Elastically Scattering Gases written by R. H. Ritchie and published by . This book was released on 1961 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Inelastic Electron Scattering written by P. Schattschneider and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron energy loss spectroscopy (ELS) is a vast subject with a long and honorable history. The problem of stopping power for high energy particles interested the earliest pioneers of quantum mechanics such as Bohr and Bethe, who laid the theoretical foun dations of the subject. The experimental origins might perhaps be traced to the original Franck-Hertz experiment. The modern field includes topics as diverse as low energy reflection electron energy loss studies of surface vibrational modes, the spectroscopy of gases and the modern theory of plasmon excitation in crystals. For the study of ELS in electron microscopy, several historically distinct areas of physics are relevant, including the theory of the Debye Waller factor for virtual inelastic scattering, the use of complex optical potentials, lattice dynamics for crystalline specimens and the theory of atomic ionisation for isolated atoms. However the field of electron energy loss spectroscopy contains few useful texts which can be recommended for students. With the recent appearance of Raether's and Egerton's hooks (see text for references), we have for the first time both a comprehensive review text-due to Raether-and a lucid introductory text which emphasizes experimental aspects-due to Egerton. Raether's text tends to emphasize the recent work on surface plasmons, while the strength of Egerton's book is its treatment of inner shell excitations for microanalysis, based on the use of atomic wavefunctions for crystal electrons.
Download or read book Publications Reports and Papers for 1961 from Oak Ridge National Laboratory written by Oak Ridge National Laboratory and published by . This book was released on 1962 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electron Flow in Low density Argon Gas Including Space charge and Elastic Collisions written by Charles M. Goldstein and published by . This book was released on 1967 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electron Scattering written by Colm T. Whelan and published by Springer Science & Business Media. This book was released on 2006-01-17 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a unity to physics; it is a discipline which provides the most fundamental understanding of the dynamics of matter and energy. To understand anything about a physical system you have to interact with it and one of the best ways to learn something is to use electrons as probes. This book is the result of a meeting, which took place in Magdalene College Cambridge in December 2001. Atomic, nuclear, cluster, soHd state, chemical and even bio- physicists got together to consider scattering electrons to explore matter in all its forms. Theory and experiment were represented in about equal measure. It was meeting marked by the most lively of discussions and the free exchange of ideas. We all learnt a lot. The Editors are grateful to EPSRC through its Collaborative Computational Project program (CCP2), lOPP, the Division of Atomic, Molecular, Optical and Plasma Physics (DAMOPP) and the Atomic Molecular Interactions group (AMIG) of the Institute of Physics for financial support. The smooth running of the meeting was enormously facilitated by the efficiency and helpfulness of the staff of Magdalene College, for which we are extremely grateful. This meeting marked the end for one of us (CTW) of a ten-year period as a fellow of the College and he would like to take this opportunity to thank the fellows and staff for the privilege of working with them.
Download or read book Elastic Scattering of Low energy Electrons by Randomly Oriented and Aligned Molecules written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elastic scattering of low (10-50 eV) kinetic energy electrons from free diatomic molecules is studied using a single-center expansion of the full molecular potential. Dynamic exchange and polarization are included in a local form. The calculated elastic differential scattering cross-sections (DCS) for electron impact on CO and N2 are in good agreement with available experimental data. The importance of using the full molecular potential instead of a two-center potential approach is pointed out. These corrections are small for energies above 50 eV, but they become increasingly important at lower energies. When discussing the angular distributions of elastically-scattered electrons from oriented molecules (like surface adsorbates), we show that these corrections are particularly significant. The results have implications for other electron scattering problems such as those encountered in low-energy photoelectron diffraction from both core and valence levels.
Download or read book Electron Scattering From Complex Nuclei V36A written by Herbert Uberall and published by Academic Press. This book was released on 2012-12-02 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron Scattering from Complex Nuclei, Part A covers the historical phases of experimental development in elastic and inelastic electron scattering. This five-chapter text presents the logical development of the underlying theory of electron scattering. After briefly discussing the history of electron scattering from nuclei, this book goes on describing the theory of elastic scattering from a point nucleus, both with Born approximation and the accurate solution of the Dirac equation, as well as the corresponding experiments. The following chapter considers the analysis of nuclear charge distributions experiments using Born cross section and phase-shift methods. A chapter is devoted to the complete elastic and inelastic Born theory. This chapter also deals with the derivation of a theorem on the general form of the electron-nucleus scattering cross section, with an emphasis on the influence of the neglected transverse interaction on the cross section. The last chapter presents the status of elastic scattering along with some topics in muonic atoms that also determine nuclear charge densities. This book will be of great benefit to physicists, researchers, and graduate students who are interested in nuclear structure problems.
Download or read book Health Physics Division Annual Progress Report for Period Ending written by Oak Ridge National Laboratory. Health Physics Division and published by . This book was released on 1961 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Energy Electron Scattering from Molecules Biomolecules and Surfaces written by Petr Carsky and published by CRC Press. This book was released on 2011-12-20 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the turn of the 21st century, the field of electron molecule collisions has undergone a renaissance. The importance of such collisions in applications from radiation chemistry to astrochemistry has flowered, and their role in industrial processes such as plasma technology and lighting are vital to the advancement of next generation devices. Furthermore, the development of the scanning tunneling microscope highlights the role of such collisions in the condensed phase, in surface processing, and in the development of nanotechnology. Low-Energy Electron Scattering from Molecules, Biomolecules and Surfaces highlights recent progress in the theory and experiment of electron-molecule collisions, providing a detailed review of the current state of knowledge of electron molecule scattering—theoretical and experimental—for the general physicist and chemist interested in solving practical problems. In few other branches of science is the collaboration between theorists and experimentalists so topical. Covering advancements in practical problems, such as those met in plasma physics, microelectronics, nanolithography, DNA research, atmospheric chemistry, and astrochemistry, this book describes the formal general scattering theory and description of the experimental setup at a level the interested non-expert can appreciate.
Download or read book ORNL written by and published by . This book was released on 19?? with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Study of the Scattering of Electrons After Ionizing Collisions in Helium Gas written by Max Goodrich and published by . This book was released on 1936 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Angular Distribution of Electrons Elastically Scattered by Helium Atoms and by Hydrogen Molecules written by S. P. Khare and published by . This book was released on 1964 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The differential cross sections for the elastic scattering of electrons by helium atoms and by hydrogen molecules were calculated over a wide range of electron impact energies with allowance made for the contribution to the scattering from the static fields of the target systems, for the effect of electron exchange and, in the case of helium, for the polarization of the target atom by the Coulomb field of the incident electron. The approximate methods which have been used include the Born approximation, the first-order exchange approximation and, in the case of helium, the numerical solution of the differential equations derived by making a partial wave analysis and employing the static field approximation together with a polarization potential term. Use was made of the zeroand first-order phase shifts calculated by Morse and Allis from the exact numerical solutions of the appropriate exchange approximation integro-differential equations for the helium case. It is found that the agreement between theory and experiment is quite satisfactory provided the experimental data for the angular distribution of elastically scattered electrons are normalized separately from the calculated differential cross section curves for each energy of impact, though there remains a tendency for the very small and the large scattering angle data to lie somewhat above that predicted by the theory.
Download or read book Bibliography of the Literature of the Health Physics Division Through Calendar Year 1975 written by and published by . This book was released on 1976 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 2000 references to publications (also including miscellaneous reports, patents, and theses) of staff members of Health Physics Division during 1945-1975. "Useful in tracing the growth and development of the health physics profession."Basic chronological arrangement by years. Patents and theses listed separately. Besides bibliographical information, each entry includes identification code number indicating year of publication, document number, and kind of publication.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1975 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Papers Presented at Mass Spectrometry Conference written by Mass Spectrometry Conference and published by . This book was released on 1962 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atomic Energy Research Reports for Sale by the U S Department of Commerce Office of Technical Services written by Business and Defense Services Administration and published by . This book was released on 1963 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
